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EP2300267B1 - Adjustment fitting - Google Patents

Adjustment fitting Download PDF

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Publication number
EP2300267B1
EP2300267B1 EP09761441.6A EP09761441A EP2300267B1 EP 2300267 B1 EP2300267 B1 EP 2300267B1 EP 09761441 A EP09761441 A EP 09761441A EP 2300267 B1 EP2300267 B1 EP 2300267B1
Authority
EP
European Patent Office
Prior art keywords
wheel
wall
fitting
inner wheel
adjustment fitting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP09761441.6A
Other languages
German (de)
French (fr)
Other versions
EP2300267A2 (en
Inventor
Frieder Krüger
André BLINZLER
Stephanie Hartleb
Jürgen Siller
Volker MÖLLER
Michael Zellmann
Matthias Weiss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brose Fahrzeugteile SE and Co KG
Original Assignee
Brose Fahrzeugteile SE and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE200810028103 external-priority patent/DE102008028103A1/en
Priority claimed from DE200810028102 external-priority patent/DE102008028102A1/en
Application filed by Brose Fahrzeugteile SE and Co KG filed Critical Brose Fahrzeugteile SE and Co KG
Priority to PL09761441T priority Critical patent/PL2300267T3/en
Publication of EP2300267A2 publication Critical patent/EP2300267A2/en
Application granted granted Critical
Publication of EP2300267B1 publication Critical patent/EP2300267B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/225—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/225—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms
    • B60N2/2252—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms in which the central axis of the gearing lies inside the periphery of an orbital gear, e.g. one gear without sun gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable

Definitions

  • the invention relates to an adjustment fitting, in particular for a vehicle seat, with a first fitting part, with a second fitting part rotatable relative to the first fitting part about an axis of rotation, wherein the first fitting part is associated with an internal gear, in which an inner wheel associated with the second fitting part an external toothing in the manner of a wobble mechanism is used eccentrically to the axis of rotation, and wherein the inner wheel to the axis of rotation forms an eccentric receiving space, with a rotatably inserted into the eccentric receiving space eccentric and with a drive shaft for driving the eccentric, wherein the outer wheel a backrest adapter and the inner wheel Seat adapter is connected, so that the inner wheel remains fixed seat, while the outer wheel including the drive shaft wobbles in an adjustment, and wherein the outer wheel as a ring gear with a bottom and with an axial direction via the internal teeth outward elongated outer wall is formed.
  • Such adjustment fitting is from the EP 1 676 503 A1 known.
  • the outer wheel is inserted by means of projections on the outer edge in recesses of an annular retaining element, which is adapted to a surface structure of the second fitting part.
  • Similar adjustment fittings are for example also from the DE 100 21 403 C2 , of the DE 31 30 315 C2 or the DE 28 34 529 C2 known.
  • the first fitting part and the second fitting part are assembled in the manner of a wobble mechanism, wherein, when the eccentric is driven, the inner wheel wobbles about its outer toothing on the inner toothing of the outer wheel. The number of teeth of the external teeth is reduced compared to the number of teeth of the internal teeth. In one complete revolution of the eccentric results in a relative rotation of the inner wheel relative to the outer wheel to the tooth difference.
  • An adjustment fitting with wobble gear has been used in vehicle technology enforced to adjust the backrest relative to the seat bottom of a vehicle seat.
  • a wobble mechanism can be realized with comparatively few mechanical components and, with a flat construction at the same time, permits a translation desired for the adjustment.
  • the fitting parts or the inner and the outer wheel of such a Verstellbeschlags are held together in the assembled state in the axial direction.
  • a wide variety of holding means are known from the prior art. If the axial clearance between the fitting parts is too great, unwanted rattling noises occur, which the occupant of a vehicle may experience as a cause for concern or at least as a loss of comfort. On the other hand, if the axial clearance between the fitting parts is too small, an unnecessarily high frictional force must be overcome to adjust the fitting.
  • the object of the invention is to provide an adjustment fitting of the type mentioned, which allows easy adjustment of the axial play between the outer wheel and the inner wheel.
  • the inner wheel is axially inserted into the ring gear until reaching the bottom and then tracked the holding element in the interior of the ring gear, so that the inner wheel between the bottom and the support member is mounted. Due to the axial displaceability of the retaining element, the axial clearance of the inner wheel relative to the outer wheel on the outer wheel is adjustable up to a zero clearance. If the desired position of the holding element relative to the bottom of the outer wheel is reached, the holding element is fixed to the outer wall. In particular, this can be done by means of a suitable welding technique. Advantageously, the fixing of the retaining element in the outer wheel by means of laser welding. Of course, an attachment by means of gluing or soldering is alternatively conceivable. The connection of the retaining element with the outer wall of the outer wheel can be made punctiform or circumferential.
  • the setting of the desired position of the holding element relative to the bottom of the outer wheel can be carried out both controlled by force. in the Case of a force-controlled adjustment manufacturing tolerances in the axial height of the inner wheel are compensated. On the other hand, allows a path-controlled determination of the desired position by varying the axial thickness of the inner wheel with otherwise identical components in the variable variants. If, for example, the thickness of the inner wheel is increased when the position of the retaining element is determined in a path-controlled manner, this results in a strength-enhanced adjusting fitting.
  • the floor it is sufficient to form the floor as a support for the inner ring.
  • a correspondingly shaped edge or a correspondingly designed partial surface is sufficient.
  • the floor substantially closes off the interior of the ring gear. In this way, the ring gear can also form an outer boundary of the adjustment fitting. The interior and thus the wobble mechanism is protected from dirt and the like.
  • the axial width of the internal toothing corresponds to the axial width of the external toothing.
  • the entire inner wheel may have a thickness which is reduced in relation to the width of the outer toothing and may be supported against the ground by means of bent-off portions of the retaining element on the outer toothing.
  • the outer toothing has a relation to the internal toothing increased axial width, and the inner wheel is counter-mounted on the radially outwardly projecting external toothing on the holding element.
  • the outer toothing can be mounted on a kind of flange, via which the inner wheel is mounted against the retaining element.
  • the adjustment fitting as such has no specific components for a particular vehicle seat, this can be used in many ways.
  • the adjustment fitting for Vehicle seats of different model variants are used.
  • the inner wheel remains fixed to the seat part, while the outer wheel, including the drive shaft, wobbles during an adjustment.
  • the tethered backrest moves in the same direction as the drive shaft.
  • the inner wheel comprises an inner wall which extends in the axial direction beyond the outer toothing and penetrates the retaining element in the axial direction, wherein the inner wheel is assigned to the second fitting part via the inner wall.
  • the extended inner wall protrudes in the assembled state of the adjusting fitting in the axial direction beyond the retaining element, so that it can be easily connected to the second fitting part or with a corresponding adapter for connection to the vehicle seat.
  • the inner wall is further extended in the axial direction, and projects beyond the outer wall. In this case, a simplified attachment to the projecting inner wall is given.
  • the connection with the second fitting part or an adapter can in turn be done by gluing, welding or soldering.
  • the technique of laser welding is also used here.
  • a peeling of such a compound in the event of a strong force on the fitting parts is as good as impossible.
  • the inner wheel is securely supported or guided between the bottom of the outer wheel and the holding element connected to the outer wall.
  • both the outer and the inner wall are basically no constraints. Both the outer and the inner wall can be continued to an imaginary or existing base each axially prismatic. In particular, polygonal circumferential contours are conceivable.
  • the outer wall of the ring gear and the inner wall of the inner wheel are each formed as a cylinder wall. Due to the rotationally symmetrical design of the components easier manufacturing is possible. Also does not need to be paid to each other in the assembly of components to a defined rotational position of each other.
  • the retaining element is designed as a retaining ring or a retaining plate, which rotates or the inner wheel or its outer toothing at least at the edge.
  • the rotational symmetry a secure and stable mounting of the inner wheel in the outer wheel is thereby provided.
  • a central collar is formed at the bottom of the ring gear, so that the eccentric receiving space between the collar and the inner gear is formed.
  • the drive shaft for the adjustment fitting is performed safely.
  • such a collar train offers the possibility of providing a plain bearing bush for mounting the eccentric.
  • the eccentric is mounted in the eccentric receiving space between an inner and an outer plain bearing bush.
  • Such storage by means of plain bearing bushes reduces the friction of the revolving eccentric relative to the outer and the inner wheel.
  • a rigid or a variable overall eccentricity forming eccentric In the eccentric receiving space can be used a rigid or a variable overall eccentricity forming eccentric.
  • a variable overall eccentricity forming, mutually rotatable Colourzentrizticianen are used in the receiving space, which are biased to form a maximum total eccentricity to each other, further provided with a rotatably connected to the drive shaft driver is provided in a drive to the Operaxzentrizticianen against the bias works. If the drive shaft is not actuated, the Operaxzentrizticianen are to form the maximum Total eccentricity biased.
  • the eccentric presses the inner wheel substantially free of play against the outer wheel, so that an unwanted movement of the two fitting parts to each other is more difficult.
  • the drive shaft is moved, the part eccentricities are twisted against the bias, which reduces the overall eccentricity.
  • the inner and the outer wheel creates a game, so that the adjustment of the fitting parts is mutually possible.
  • the holding element is welded to the outer wall of the ring gear, wherein preferably the method of laser welding is used.
  • this can be done by means of a circumferential fillet weld.
  • there is a connection by means of a so-called I-seam, which is produced by laser welding.
  • the ring gear itself is also preferably connected by laser welding to the first fitting part.
  • a continuous bearing pin is expediently provided, on which in particular by means of said central collar pull the outer wheel is mounted.
  • the outer wheel of the backrest adapter and the inner wheel of the seat adapter is welded.
  • the outer wheel and the inner wheel of an equipped with a wobble adjustment fitting are designed as fine cutting parts, which are deformed accordingly.
  • Such produced inner and outer wheels have at all points an approximately constant material thickness, which substantially corresponds to the original sheet thickness.
  • a constant material thickness does not meet the actual loads.
  • such a production does not allow tolerance-accurate positioning of different geometries on the component, such as the location of an elongated wall relative to a toothing.
  • Extrusion is a massive forming process that produces both hollow and solid bodies through a single-stage or multi-stage manufacturing process.
  • the material in particular metal, under the influence of a high pressure to flow brought.
  • a stamp presses the workpiece blank by a shaping, reduced in cross-section tool opening, a die.
  • the forming itself is usually done at room temperature, so that one speaks of a cold extrusion.
  • a high dimensional accuracy and a high surface quality is achieved.
  • the advantage of using the cold extrusion for producing the inner wheel and / or the outer wheel for a Verstellbeschlag lies in the possibility for strength-optimized structures that may provide weight advantages. Cost savings can also be achieved through material savings. In addition, tighter tolerances in the toothing and the coaxiality can be realized by the use of cold extrusion, whereby the homogeneity of the operation of the adjustment fitting is improved. Since an adjustment fitting is a mass component, cost advantages are achieved by requiring only a single tool for production.
  • the cold extrusion allows in particular a facilitated production of a geometry, wherein the outer toothing is covered by a circumferential ring.
  • the toothing is connected peripherally, so that the strength is increased with the same space.
  • a corresponding geometry can not be achieved with other cold forming processes.
  • a machining process comes into question.
  • the reinforcement of the material at particularly loaded areas can be provided for example in the region of the inner collar pull or in the area of the toothing.
  • FIG. 1 an adjustment fitting 1 for a vehicle seat is shown in an exploded view.
  • the adjustment fitting 1 in this case comprises a first fitting part 2 and a second fitting part 3, which are rotatable relative to each other about an axis of rotation A.
  • the first fitting part 2 consists of an outer wheel 4, which is connected to the later assembly of a seat back, a corresponding backrest adapter 6, in particular by means of a weld.
  • the second fitting part 3 comprises an inner wheel 7 and a seat adapter 8 connected thereto for connection to a seat base.
  • the outer wheel 4 is formed as a ring gear 5 with a bottom 9 and a circumferential cylindrical outer wall 10.
  • an axially recessed internal toothing 12 is provided on the inside of the outer wall 10.
  • the outer wall 10 is extended beyond the inner teeth 12 in the axial direction.
  • a collar 14 is further attached, which rotates a central bore.
  • the inner wheel 7 is inserted, which comprises a circumferential outer toothing 16 and a cylindrical inner wall 18 extended in the axial direction beyond the outer toothing 16 addition.
  • the inner wheel 7 is inserted into the interior 20 of the ring gear 4. Since the outer diameter of the inner wheel 7 with respect to the inner diameter 12 of the ring gear 4 has a reduced diameter has, the latter rolls tumbling under unwinding of the external teeth 16 on the internal teeth 12 in the ring gear 5 from. The number of teeth of the external toothing 16 is reduced relative to the number of teeth of the internal toothing 12, so that the internal gear 7 relatively rotates in a complete revolution relative to the ring gear 5 by the tooth difference.
  • the inner wheel 7 is inserted axially to the bottom 9 in the ring gear 5. Subsequently, a holding element 23, which is formed as a retaining ring 24, the inner wheel 7 tracked into the interior 20 of the ring gear 5, wherein it surrounds the inner wall 18 of the inner wheel 7.
  • the retaining ring 24 has a relation to the inner diameter of the outer wall 10 slightly reduced outer diameter. Its inner diameter allows the tumbling movement of the enclosed inner wall 18 of the inserted inner wheel 7.
  • the outer toothing 16 of the inner wheel 7 is located on a circumferential flange, via which the inner wheel 7 is mounted counter to the retaining ring 24.
  • the retaining ring 24 is moved in the axial direction so far against the bottom 9 of the ring gear 5 until a defined axial clearance of the internal gear 7 is set. This can be done both force and path controlled. In a force-controlled insertion manufacturing tolerances in the axial width of the external teeth 16 are compensated. In the desired end position of the retaining ring 24 is circumferentially welded to the inside of the outer wall 10.
  • an eccentric receiving space 25 is formed between the collar 14 and the inner wall 18 for receiving a driving eccentric.
  • the seat adapter 8 comprises an outer ring 27, which engages over the inner wall 18 of the inner wheel 7 via a central opening 28. In the assembled state, the inner wall 18 is firmly welded to the outer ring 27 of the seat adapter 8.
  • a first Operazzenter 30 and a second Operazzenter 32 are used to form a variable total eccentricity. These together the eccentric forming part eccentric 30,32 are rotated by means of an applied drive plate 34 against each other, thereby changing their overall eccentricity.
  • the drive plate 34 has lateral recesses 35, 36 into which drive lugs 37, 38 of the first or the second parts eccentric 30, 32 engage.
  • the parts eccentric 30,32 are biased by means of a spring element 40 to form a maximum total eccentricity, in which position the inner wheel 7 is pressed against the outer wheel 4 without play.
  • a continuous bearing pin 42 is provided, which comprises an eccentric, in the inner wall 18 laterally engaging lid 44.
  • a square opening 45 is inserted to drive.
  • the bearing pin 42 is rotatably connected to the drive plate 34.
  • a retaining ring 46 is provided opposite.
  • an inner sleeve 48 and an outer sleeve 49 are provided.
  • the inner plain bearing bush 48 is placed on the collar 14.
  • the outer plain bearing bush 49 is inserted into the inner wall 18.
  • Fig. 2 is the adjustment fitting 1 according to Fig. 1 shown in a cross section. It recognizes the seat adapter 8, which is connected to the inner wheel 7, and the backrest adapter 6, which is fixedly connected to the ring gear 5.
  • the inner wheel 7 is inserted into the outer wall 10 of the ring gear 4 and mounted between the bottom 9 and the retaining ring 24.
  • the external toothing 16 is supported in the axial direction against the retaining ring 24.
  • the retaining ring 24 is welded in the set position with the outer wall 10 of the ring gear 5.
  • the seat adapter 8 is welded to the outer wall 18 of the inner wheel 7 which is extended in the axial direction beyond the outer teeth 16.
  • the ring gear 5 is supported by the collar 14 on the continuous bearing pin 42. It can be seen that the bearing pin 42 is secured on the side of the ring gear 4 by means of the retaining ring 46. Opposite the bearing pin 42 passes into the cover 44, which dips with laterally drawn down walls in the inner wall 18 of the inner wheel 7. The cover is also formed eccentrically according to the trained total eccentricity of the parts eccentric 30,32. Inside the bearing pin 42 of the square 45 is visible for connection to a drive.
  • Fig. 3 shows in a cross section an outer wheel 4 produced by cold extrusion. It is the central bore 50 circumferential collar 14 and the raised outer wall 10 can be seen, on the inner circumference of the internal teeth 12 is formed.
  • the material thickness of the outer wheel 4 is increased in the region 52 to the collar 14 and in the toothing region 53.
  • the outer wheel 4 produced by means of cold extrusion shows so far a load-oriented material distribution.
  • Fig. 4 is a Kaltf unitedgepresstes inner wheel 7 shown in a cross section. It is recognizable the raised inner wall 18 which carries on its outer side an integrally formed external toothing 16. By an overlying ring 54, the external teeth 16 is peripherally connected to a support geometry. The strength of the inner wheel 7 is thus increased with the same space. By providing the ring 54 also a good flow of material for the formation of the external teeth 16 is achieved during the cold extrusion.
  • Adjuster 2 first fitting part 48 inner plain bearing bush 3 second fitting part 49 outer plain bearing bush 4 outer wheel 50 drilling 5 ring gear 52 Area 6 backrest adapter 53 toothed area 7 inner wheel 54 ring 8th seat adapter 9 ground A axis of rotation 10 outer wall 12 internal gearing 14 collar 16 external teeth 18 inner wall 20 inner space 23 retaining element 24 retaining ring 25 Eccentric. accommodation space 27 outer ring 28 central opening 30 first part eccentric 32 second part eccentric 34 driver disc 35.36 lateral recess 37.38 driving lug 40 spring element 42 pivot 44 cover 45 Square hole 46 retaining ring

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Description

Die Erfindung betrifft einen Verstellbeschlag, insbesondere für einen Fahrzeugsitz, mit einem ersten Beschlagteil, mit einem relativ zum ersten Beschlagteil um eine Drehachse drehverstellbaren zweiten Beschlagteil, wobei dem ersten Beschlagteil ein Außenrad mit einer Innenverzahnung zugeordnet ist, in welches ein dem zweiten Beschlagteil zugeordnetes Innenrad mit einer Außenverzahnung nach Art eines Taumelgetriebes exzentrisch zur Drehachse eingesetzt ist, und wobei das Innenrad zur Drehachse einen exzentrischen Aufnahmeraum bildet, mit einem in den exzentrischen Aufnahmeraum drehbar eingesetzten Exzenter und mit einer Antriebswelle zum Antrieb des Exzenters, wobei dem Außenrad ein Lehnenadapter und dem Innenrad ein Sitzadapter angebunden ist, so dass das Innenrad sitzteilfest bleibt, während das Außenrad einschließlich der Antriebswelle bei einer Verstellung taumelt, und wobei das Außenrad als ein Hohlrad mit einem Boden und mit einer in axialer Richtung über die Innenverzahnung hinaus verlängerten Außenwand ausgebildet ist.The invention relates to an adjustment fitting, in particular for a vehicle seat, with a first fitting part, with a second fitting part rotatable relative to the first fitting part about an axis of rotation, wherein the first fitting part is associated with an internal gear, in which an inner wheel associated with the second fitting part an external toothing in the manner of a wobble mechanism is used eccentrically to the axis of rotation, and wherein the inner wheel to the axis of rotation forms an eccentric receiving space, with a rotatably inserted into the eccentric receiving space eccentric and with a drive shaft for driving the eccentric, wherein the outer wheel a backrest adapter and the inner wheel Seat adapter is connected, so that the inner wheel remains fixed seat, while the outer wheel including the drive shaft wobbles in an adjustment, and wherein the outer wheel as a ring gear with a bottom and with an axial direction via the internal teeth outward elongated outer wall is formed.

Ein derartiger Verstellbeschlag ist aus der EP 1 676 503 A1 bekannt. Dabei ist das Außenrad mittels Vorsprüngen am Außenrand in Ausnehmungen eines ringförmigen Halteelements eingesetzt, welches an eine Oberflächenstruktur des zweiten Beschlagteils angepasst ist.Such adjustment fitting is from the EP 1 676 503 A1 known. In this case, the outer wheel is inserted by means of projections on the outer edge in recesses of an annular retaining element, which is adapted to a surface structure of the second fitting part.

Ähnliche Verstellbeschläge sind beispielsweise auch aus der DE 100 21 403 C2 , der DE 31 30 315 C2 oder der DE 28 34 529 C2 bekannt. Dabei sind das erste Beschlagteil und das zweite Beschlagteil nach Art eines Taumelgetriebes zusammengefügt, wobei sich bei Antrieb des Exzenters das Innenrad taumelnd über seine Außenverzahnung an der Innenverzahnung des Außenrads abrollt. Die Anzahl der Zähne der Außenverzahnung ist gegenüber der Anzahl der Zähne der Innenverzahnung verringert. Bei einem vollständigen Umlauf des Exzenters resultiert eine Relativdrehung des Innenrads gegenüber dem Außenrad um die Zahndifferenz. Ein Verstellbeschlag mit Taumelgetriebe hat sich in der Fahrzeugtechnik zur Verstellung der Lehne gegenüber dem Sitzunterteil eines Fahrzeugsitzes durchgesetzt. Ein Taumelgetriebe ist mit vergleichsweise wenigen mechanischen Bauteilen zu verwirklichen und ermöglicht bei zugleich flacher Bauweise eine zur Verstellung gewünschte Übersetzung.Similar adjustment fittings are for example also from the DE 100 21 403 C2 , of the DE 31 30 315 C2 or the DE 28 34 529 C2 known. In this case, the first fitting part and the second fitting part are assembled in the manner of a wobble mechanism, wherein, when the eccentric is driven, the inner wheel wobbles about its outer toothing on the inner toothing of the outer wheel. The number of teeth of the external teeth is reduced compared to the number of teeth of the internal teeth. In one complete revolution of the eccentric results in a relative rotation of the inner wheel relative to the outer wheel to the tooth difference. An adjustment fitting with wobble gear has been used in vehicle technology enforced to adjust the backrest relative to the seat bottom of a vehicle seat. A wobble mechanism can be realized with comparatively few mechanical components and, with a flat construction at the same time, permits a translation desired for the adjustment.

Die Beschlagteile bzw. das Innen- und das Außenrad eines derartigen Verstellbeschlags sind im fertig montierten Zustand in axialer Richtung zusammengehalten. Dazu sind aus dem Stand der Technik unterschiedlichste Haltemittel bekannt. Ist das Axialspiel zwischen den Beschlagteilen zu groß, so kommt es zu unerwünschten Klappergeräuschen, was der Insasse eines Fahrzeuges unter Umständen besorgniserregend oder zumindest als Komfortverlust empfindet. Ist andererseits das Axialspiel zwischen den Beschlagteilen zu klein, so muss zur Verstellung des Beschlags eine unnötig hohe Reibungskraft überwunden werden.The fitting parts or the inner and the outer wheel of such a Verstellbeschlags are held together in the assembled state in the axial direction. For this purpose, a wide variety of holding means are known from the prior art. If the axial clearance between the fitting parts is too great, unwanted rattling noises occur, which the occupant of a vehicle may experience as a cause for concern or at least as a loss of comfort. On the other hand, if the axial clearance between the fitting parts is too small, an unnecessarily high frictional force must be overcome to adjust the fitting.

Aus der genannten DE 100 21 403 C2 ist für den axialen Zusammenhalt der Beschlagteile ein die beiden Beschlagteile übergreifender Schließring bekannt, der über einen polygonalen Formschluss mit zumindest einem der Beschlagteile drehfest verbunden ist.From the mentioned DE 100 21 403 C2 is for the axial cohesion of the fitting parts, a two fitting parts cross-locking ring is known, which is rotatably connected via a polygonal positive connection with at least one of the fitting parts.

Gemäß der DE 10 105 282 B4 werden die Beschlagteile eines Verstellbeschlags über einen Haltering axial zusammengehalten, wobei ein Beschlagteil in den Haltering eingepresst ist. Dadurch soll eine einfachere Montage ermöglicht sein. Ergänzend wird vorgeschlagen, den Haltering innen mit einer Stufe auszubilden, bis zu welcher das Beschlagteil eingepresst wird. Durch die Stufe ist das Axialspiel des Beschlags einstellbar.According to the DE 10 105 282 B4 the fitting parts of a Verstellbeschlags are held together axially via a retaining ring, wherein a fitting part is pressed into the retaining ring. This should be a simpler installation allows. In addition, it is proposed to form the retaining ring inside with a step to which the fitting part is pressed. Through the stage, the axial play of the fitting is adjustable.

Aus der DE 31 30 315 C2 ist für den axialen Zusammenhalt der beiden Beschlagteile eines Verstellbeschlags die Verwendung einer Tellerscheibe bekannt, die fest mit einem Beschlagteil verbunden ist. Dabei bildet der Tellerrand eine Innenverzahnung, die mit einer überstehenden Außenverzahnung des Innenrads kämmt. Für den axialen Zusammenhalt der Beschlagteile wird die Tellerscheibe von einem Halteglied hintergriffen, welches in Schlitze des anderen Beschlagteils eingedrückt und in einer spielfreien Lage mit diesem Beschlagteil verbunden wird. Schließlich ist in der DE 28 34 529 C2 für den axialen Zusammenhalt der Beschlagteile eines Verstellbeschlags ein Lagerschild offenbart, welches seitliche Abwinklungen aufweist, die die beiden Beschlagteile seitlich übergreifen. Bei der Montage werden die Beschlagteile spielfrei zusammengedrückt und das äußere Beschlagteil in dieser Position fest mit den seitlichen Abwinklungen verbunden.From the DE 31 30 315 C2 is known for the axial cohesion of the two fitting parts of a Verstellbeschlags the use of a dish washer, which is firmly connected to a fitting part. In this case, the rim forms an internal toothing, which meshes with a protruding outer toothing of the inner wheel. For the axial cohesion of the fitting parts, the plate disc is engaged behind by a holding member, which is pressed into slots of the other fitting part and connected in a play-free position with this fitting part. Finally, in the DE 28 34 529 C2 discloses a bearing plate for the axial cohesion of the fitting parts of a Verstellbeschlags, which has lateral bends, which engage over the two fittings laterally. During assembly, the fitting parts are compressed without play and the outer fitting part firmly connected in this position with the lateral bends.

Aufgabe der Erfindung ist es, einen Verstellbeschlag der eingangs genannten Art anzugeben, der ein einfaches Einstellen des Axialspiels zwischen dem Außenrad und dem Innenrad ermöglicht.The object of the invention is to provide an adjustment fitting of the type mentioned, which allows easy adjustment of the axial play between the outer wheel and the inner wheel.

Diese Aufgabe wird erfindungsgemäß durch einen Verstellbeschlag mit der Merkmalskombination gemäß Anspruch 1 gelöst. Demnach ist vorgesehen, ein in der Außenwand axial gegen das Innenrad verschiebbares Halteelement vorzusehen, welches an der Außenwand befestigt ist und das Innenrad gegen den Boden des Hohlrades lagert.This object is achieved by a Verstellbeschlag with the combination of features according to claim 1. Accordingly, it is provided to provide an axially displaceable in the outer wall against the inner wheel holding member which is fixed to the outer wall and supports the inner wheel against the bottom of the ring gear.

Bei der Montage wird das Innenrad axial in das Hohlrad bis zum Erreichen des Bodens eingeschoben und anschließend das Halteelement in das Innere des Hohlrades nachgeführt, so dass das Innenrad zwischen dem Boden und dem Halteelement gelagert ist. Durch die axiale Verschiebbarkeit des Halteelements ist das Axialspiel des Innenrades gegenüber dem Außenrad über dem Außenrad bis zu einem Nullspiel einstellbar. Ist die gewünschte Position des Halteelements gegenüber dem Boden des Außenrades erreicht, so wird das Halteelement an der Außenwand fixiert. Insbesondere kann dies mittels einer geeigneten Schweißtechnik erfolgen. Vorteilhafterweise erfolgt die Fixierung des Halteelements in dem Außenrad mittels Laserschweißen. Selbstverständlich ist alternativ auch eine Befestigung mittels Kleben oder Löten vorstellbar. Die Verbindung des Halteelements mit der Außenwand des Außenrads kann punktuell oder umlaufend vorgenommen werden.During assembly, the inner wheel is axially inserted into the ring gear until reaching the bottom and then tracked the holding element in the interior of the ring gear, so that the inner wheel between the bottom and the support member is mounted. Due to the axial displaceability of the retaining element, the axial clearance of the inner wheel relative to the outer wheel on the outer wheel is adjustable up to a zero clearance. If the desired position of the holding element relative to the bottom of the outer wheel is reached, the holding element is fixed to the outer wall. In particular, this can be done by means of a suitable welding technique. Advantageously, the fixing of the retaining element in the outer wheel by means of laser welding. Of course, an attachment by means of gluing or soldering is alternatively conceivable. The connection of the retaining element with the outer wall of the outer wheel can be made punctiform or circumferential.

Die Einstellung der gewünschten Position des Halteelements gegenüber dem Boden des Außenrades kann hierbei sowohl kraft- aus weggesteuert erfolgen. Im Falle einer kraftgesteuerten Einstellung werden fertigungsbedingte Toleranzen in der axialen Höhe des Innenrades ausgeglichen. Andererseits ermöglicht eine weggesteuerte Festlegung der gewünschten Position durch Variation der axialen Dicke des Innenrades bei sonst identischen Bauteilen in der Festigkeit veränderbare Varianten. Wird beispielsweise bei einer weggesteuerten Festlegung der Position des Halteelements die Dicke des Innenrades erhöht, so resultiert hieraus ein festigkeitsgesteigerter Verstellbeschlag.The setting of the desired position of the holding element relative to the bottom of the outer wheel can be carried out both controlled by force. in the Case of a force-controlled adjustment manufacturing tolerances in the axial height of the inner wheel are compensated. On the other hand, allows a path-controlled determination of the desired position by varying the axial thickness of the inner wheel with otherwise identical components in the variable variants. If, for example, the thickness of the inner wheel is increased when the position of the retaining element is determined in a path-controlled manner, this results in a strength-enhanced adjusting fitting.

Es ist nicht erforderlich, den Boden vollflächig auszugestalten. Grundsätzlich genügt es, den Boden als Auflager für den Innenring auszubilden. Hierzu genügt ein entsprechend gestalteter Rand oder eine entsprechend gestaltete Teilfläche. Bevorzugt schließt der Boden aber den Innenraum des Hohlrads im Wesentlichen ab. Auf diese Weise kann das Hohlrad zugleich eine äußere Begrenzung des Verstellbeschlags bilden. Der Innenraum und damit das Taumelgetriebe ist vor Schmutz und dergleichen geschützt.It is not necessary to design the floor over the entire surface. Basically, it is sufficient to form the floor as a support for the inner ring. For this purpose, a correspondingly shaped edge or a correspondingly designed partial surface is sufficient. Preferably, however, the floor substantially closes off the interior of the ring gear. In this way, the ring gear can also form an outer boundary of the adjustment fitting. The interior and thus the wobble mechanism is protected from dirt and the like.

Für die Erfindung ist es auch nicht erforderlich, dass die axiale Breite der Innenverzahnung der axialen Breite der Außenverzahnung entspricht. Beispielsweise kann das gesamte Innenrad eine gegenüber der Breite der Außenverzahnung verringerte Dicke aufweisen und mittels abgekröpfter Teilbereiche des Halteelements an der Außenverzahnung vorbei gegen den Boden gelagert werden. Andererseits ist es auch vorstellbar, dass die Außenverzahnung eine gegenüber der Innenverzahnung erhöhte axiale Breite aufweist, und das Innenrad über die radial abstehende Außenverzahnung am Halteelement gegengelagert ist. Bei dieser Ausgestaltung kann insbesondere die Außenverzahnung auf einer Art Flansch angebracht sein, über den das Innenrad gegen das Halteelement gelagert ist. Die Lagerung des Innenrades über die Außenverzahnung an dem Halteelement stellt insofern eine vorteilhafte Variante dar, da das Halteelement dann vergleichsweise einfach ausgeführt werden kann.For the invention, it is also not necessary that the axial width of the internal toothing corresponds to the axial width of the external toothing. For example, the entire inner wheel may have a thickness which is reduced in relation to the width of the outer toothing and may be supported against the ground by means of bent-off portions of the retaining element on the outer toothing. On the other hand, it is also conceivable that the outer toothing has a relation to the internal toothing increased axial width, and the inner wheel is counter-mounted on the radially outwardly projecting external toothing on the holding element. In this embodiment, in particular the outer toothing can be mounted on a kind of flange, via which the inner wheel is mounted against the retaining element. The mounting of the inner wheel on the outer toothing on the retaining element represents an advantageous variant, since the retaining element can then be carried out comparatively easily.

Da der Verstellbeschlag als solcher keine spezifischen Komponenten für einen bestimmten Fahrzeugsitz aufweist, kann dieser vielseitig eingesetzt sein. Über das Anbringen eines Sitz- bzw. einen Lehnenadapters kann der Verstellbeschlag für Fahrzeugsitze unterschiedlicher Modellvarianten eingesetzt werden. Bei der angegebenen Konfiguration bleibt das Innenrad sitzteilfest, während das Außenrad einschließlich der Antriebswelle bei einer Verstellung taumelt. Die angebundene Lehne bewegt sich gleichsinnig mit der Antriebswelle.Since the adjustment fitting as such has no specific components for a particular vehicle seat, this can be used in many ways. About the attachment of a seat or a backrest adapter, the adjustment fitting for Vehicle seats of different model variants are used. In the given configuration, the inner wheel remains fixed to the seat part, while the outer wheel, including the drive shaft, wobbles during an adjustment. The tethered backrest moves in the same direction as the drive shaft.

In einer bevorzugten Weiterbildung des Verstellbeschlags umfasst das Innenrad eine in axialer Richtung über die Außenverzahnung hinaus verlängerte Innenwand, die das Halteelement in axialer Richtung durchdringt, wobei das Innenrad über die Innenwand dem zweiten Beschlagteil zugeordnet ist. Bei dieser Variante ragt die verlängerte Innenwand im zusammengebauten Zustand des Verstellbeschlags in axialer Richtung über das Halteelement hinaus, so dass es leicht mit dem zweiten Beschlagteil oder mit einem entsprechenden Adapter zur Anbindung an den Fahrzeugsitz verbunden werden kann. Weiter vorteilhaft hierzu ist es, wenn die Innenwand in axialer Richtung weiter verlängert ist, und die Außenwand überragt. In diesem Fall ist eine vereinfachte Befestigung an der überstehenden Innenwand gegeben. Die Verbindung mit dem zweiten Beschlagteil oder einem Adapter kann wiederum mittels Kleben, Schweißen oder Löten erfolgen. Bevorzugt ist auch hier die Technik des Laserschweißens einzusetzen.In a preferred development of the adjustment fitting, the inner wheel comprises an inner wall which extends in the axial direction beyond the outer toothing and penetrates the retaining element in the axial direction, wherein the inner wheel is assigned to the second fitting part via the inner wall. In this variant, the extended inner wall protrudes in the assembled state of the adjusting fitting in the axial direction beyond the retaining element, so that it can be easily connected to the second fitting part or with a corresponding adapter for connection to the vehicle seat. Further advantageous for this purpose, when the inner wall is further extended in the axial direction, and projects beyond the outer wall. In this case, a simplified attachment to the projecting inner wall is given. The connection with the second fitting part or an adapter can in turn be done by gluing, welding or soldering. Preferably, the technique of laser welding is also used here.

Für eine stabile und eine erhöhte Crashfestigkeit aufweisende Variante ist sowohl die Außenwand des Außenrads als auch die Innenwand des Innenrads umlaufend ausgebildet, wobei das Halteelement mit einer zu Außenwand komplementären Außenumrandung in die Außenwand eingesetzt und dort umlaufend mit dieser fest verbunden ist. Ein Aufschälen einer solchen Verbindung im Falle einer starken Krafteinleitung auf die Beschlagteile ist so gut wie ausgeschlossen. Das Innenrad ist sicher zwischen dem Boden des Außenrads und dem mit der Außenwand verbundenen Halteelement gelagert bzw. geführt.For a stable and an increased crash resistance having variant, both the outer wall of the outer wheel and the inner wall of the inner wheel circumferentially formed, wherein the holding member is used with a complementary outer wall to outer wall in the outer wall and there peripherally connected to this fixed. A peeling of such a compound in the event of a strong force on the fitting parts is as good as impossible. The inner wheel is securely supported or guided between the bottom of the outer wheel and the holding element connected to the outer wall.

Hinsichtlich der Außenkontur der Außen- und der Innenwand bestehen grundsätzlich keine Zwänge. Sowohl die Außen- als auch die Innenwand können zu einer gedachten oder vorhandenen Grundfläche jeweils axial prismatisch fortgesetzt sein. Insbesondere sind auch polygonale Umfangskonturen vorstellbar.With regard to the outer contour of the outer and the inner wall are basically no constraints. Both the outer and the inner wall can be continued to an imaginary or existing base each axially prismatic. In particular, polygonal circumferential contours are conceivable.

In einer bevorzugten Ausgestaltung sind die Außenwand des Hohlrades und die Innenwand des Innenrades jeweils als eine Zylinderwand ausgebildet. Durch die rotationssymmetrische Ausgestaltung der Bauteile ist eine einfachere Fertigung ermöglicht. Auch braucht bei der Zusammenfügung der Bauteile nicht auf eine definierte Drehlage dieser zueinander geachtet werden.In a preferred embodiment, the outer wall of the ring gear and the inner wall of the inner wheel are each formed as a cylinder wall. Due to the rotationally symmetrical design of the components easier manufacturing is possible. Also does not need to be paid to each other in the assembly of components to a defined rotational position of each other.

Zweckmäßigerweise ist das Halteelement als ein Haltering oder eine Haltescheibe ausgebildet, der bzw. die das Innenrad oder dessen Außenverzahnung zumindest am Rand umläuft. Infolge der Rotationssymmetrie ist hierdurch eine sichere und stabile Lagerung des Innenrades in dem Außenrad gegeben.Conveniently, the retaining element is designed as a retaining ring or a retaining plate, which rotates or the inner wheel or its outer toothing at least at the edge. As a result of the rotational symmetry, a secure and stable mounting of the inner wheel in the outer wheel is thereby provided.

Zweckmäßigerweise ist am Boden des Hohlrades ein zentraler Kragenzug ausgebildet, so dass der exzentrische Aufnahmeraum zwischen dem Kragenzug und dem Innenrad ausgebildet ist. In einem derartigen Kragenzug ist beispielsweise die Antriebswelle für den Verstellbeschlag sicher geführt. Auf der anderen Seite bietet ein solcher Kragenzug die Möglichkeit, eine Gleitlagerbuchse zur Lagerung des Exzenters vorzusehen.Appropriately, a central collar is formed at the bottom of the ring gear, so that the eccentric receiving space between the collar and the inner gear is formed. In such a collar train, for example, the drive shaft for the adjustment fitting is performed safely. On the other hand, such a collar train offers the possibility of providing a plain bearing bush for mounting the eccentric.

Bevorzugt ist der Exzenter in dem exzentrischen Aufnahmeraum hierbei zwischen einer inneren und einer äußeren Gleitlagerbuchse gelagert. Eine solche Lagerung mittels Gleitlagerbuchsen verringert die Reibung des umlaufenden Exzenters gegenüber dem Außen- und dem Innenrad.Preferably, the eccentric is mounted in the eccentric receiving space between an inner and an outer plain bearing bush. Such storage by means of plain bearing bushes reduces the friction of the revolving eccentric relative to the outer and the inner wheel.

In den exzentrischen Aufnahmeraum kann ein starrer oder ein eine variable Gesamtexzentrizität bildender Exzenter eingesetzt sein. Insbesondere zur Ausbildung einer variablen Gesamtexzentrizität sind aus dem Stand der Technik verschiedene Ausführungen bekannt. In einer besonders vorteilhaften Ausgestaltung sind in den Aufnahmeraum zwei eine variable Gesamtexzentrizität bildende, gegeneinander drehbare Teilexzentrizitäten eingesetzt, die zur Ausbildung einer maximalen Gesamtexzentrizität zueinander vorgespannt sind, wobei weiter ein mit der Antriebswelle drehfest verbundener Mitnehmer vorgesehen ist, der bei einem Antrieb auf die Teilexzentrizitäten gegen die Vorspannung wirkt. Wird die Antriebswelle nicht betätigt, so sind die Teilexzentrizitäten unter Ausbildung der maximalen Gesamtexzentrizität vorgespannt. In dieser Position drückt der Exzenter das Innenrad im Wesentlichen spielfrei gegen das Außenrad, so dass eine ungewollte Bewegung der beiden Beschlagteile zueinander erschwert ist. Wird die Antriebswelle bewegt, so werden die Teilexzentrizitäten gegen die Vorspannung verdreht, wodurch sich die Gesamtexzentrizität verkleinert. Zwischen dem Innen- und dem Außenrad entsteht ein Spiel, so dass die Verstellung der Beschlagteile zueinander ermöglicht ist.In the eccentric receiving space can be used a rigid or a variable overall eccentricity forming eccentric. In particular, for the formation of a variable overall eccentricity different embodiments are known from the prior art. In a particularly advantageous embodiment, a variable total eccentricity forming, mutually rotatable Teilxzentrizitäten are used in the receiving space, which are biased to form a maximum total eccentricity to each other, further provided with a rotatably connected to the drive shaft driver is provided in a drive to the Teilxzentrizitäten against the bias works. If the drive shaft is not actuated, the Teilxzentrizitäten are to form the maximum Total eccentricity biased. In this position, the eccentric presses the inner wheel substantially free of play against the outer wheel, so that an unwanted movement of the two fitting parts to each other is more difficult. When the drive shaft is moved, the part eccentricities are twisted against the bias, which reduces the overall eccentricity. Between the inner and the outer wheel creates a game, so that the adjustment of the fitting parts is mutually possible.

Wie bereits erwähnt, ist in einer bevorzugten Ausgestaltung das Halteelement mit der Außenwand des Hohlrades verschweißt, wobei bevorzugt die Methode des Laserschweißens verwendet wird. Beispielsweise kann dies mittels einer umlaufenden Kehlnaht vorgenommen werden. Insbesondere liegt eine Verbindung mittels einer sogenannten I-Naht vor, die durch Laserschweißen erzeugt ist. Das Hohlrad selbst ist ebenfalls bevorzugt durch Laserschweißen mit dem ersten Beschlagteil verbunden.As already mentioned, in a preferred embodiment, the holding element is welded to the outer wall of the ring gear, wherein preferably the method of laser welding is used. For example, this can be done by means of a circumferential fillet weld. In particular, there is a connection by means of a so-called I-seam, which is produced by laser welding. The ring gear itself is also preferably connected by laser welding to the first fitting part.

Zur Lagerung der Bauteile des Verstellbeschlags ist zweckmäßigerweise ein durchgehender Lagerzapfen vorgesehen, auf welchem insbesondere mittels des erwähnten zentralen Kragenzugs das Außenrad gelagert ist.For the storage of the components of the adjusting fitting a continuous bearing pin is expediently provided, on which in particular by means of said central collar pull the outer wheel is mounted.

Bevorzugt ist dem Außenrad der Lehnenadapter und dem Innenrad der Sitzadapter angeschweißt.Preferably, the outer wheel of the backrest adapter and the inner wheel of the seat adapter is welded.

Bislang werden Außenrad und Innenrad eines mit einem Taumelgetriebe ausgestatteten Verstellbeschlags als Feinschneidteile ausgeführt, die entsprechend verformt werden. Derartig hergestellte Innen- und Außenräder weisen an allen Stellen eine annähernd konstante Materialdicke auf, die im Wesentlichen der ursprünglichen Blechdicke entspricht. Eine konstante Materialdicke wird jedoch nicht den tatsächlichen Belastungen gerecht. Auch ermöglicht eine solche Herstellung keine toleranzgenaue Positionierung unterschiedlicher Geometrien am Bauteil, wie beispielsweise die Lage einer verlängerten Wand gegenüber einer Verzahnung.So far, the outer wheel and the inner wheel of an equipped with a wobble adjustment fitting are designed as fine cutting parts, which are deformed accordingly. Such produced inner and outer wheels have at all points an approximately constant material thickness, which substantially corresponds to the original sheet thickness. However, a constant material thickness does not meet the actual loads. Also, such a production does not allow tolerance-accurate positioning of different geometries on the component, such as the location of an elongated wall relative to a toothing.

Die geschilderten Nachteile der bisherigen Herstellungsmethoden zur Fertigung eines Außen- oder eines Innenrads für ein Taumelgetriebe können jedoch über wunden werden, wenn das Innenrad oder das Außenrad jeweils als ein Kaltfließpressteil hergestellt werden. Beim Fließpressen handelt es sich um eine Massivumformung, die durch einen einstufigen oder mehrstufigen Fertigungsvorgang sowohl Hohl- als auch Vollkörper erstellt. Prinzipiell wird bei diesem Verfahren der Werkstoff, insbesondere Metall, unter Einwirkung eines hohen Druckes zum Fließen gebracht. Dabei drückt ein Stempel den Werkstückrohling durch eine formgebende, im Querschnitt verminderte Werkzeugöffnung, eine Matrize. Das Umformen selbst erfolgt meist bei Raumtemperatur, so dass man von einem Kaltfließpressen spricht. Hierbei wird eine hohe Maßgenauigkeit und eine hohe Oberflächengüte erreicht.However, the described disadvantages of the previous manufacturing methods for producing an outer or an inner wheel for a wobble gear can be wound over when the inner wheel or the outer wheel are each made as a cold extruded part. Extrusion is a massive forming process that produces both hollow and solid bodies through a single-stage or multi-stage manufacturing process. In principle, in this method, the material, in particular metal, under the influence of a high pressure to flow brought. In this case, a stamp presses the workpiece blank by a shaping, reduced in cross-section tool opening, a die. The forming itself is usually done at room temperature, so that one speaks of a cold extrusion. Here, a high dimensional accuracy and a high surface quality is achieved.

Der Vorteil der Anwendung des Kaltfließpressens zur Herstellung des Innenrads und/oder des Außenrads für einen Verstellbeschlag liegt in der Möglichkeit für festigkeitsoptimierte Konstruktionen, die unter Umständen Gewichtsvorteile erbringen. Durch Materialeinsparungen können zudem Kostenvorteile erzielt werden. Zudem können durch den Einsatz des Kaltfließpressens engere Toleranzen bei der Verzahnung und der Koaxialität realisiert werden, wodurch die Homogenität der Betätigung des Verstellbeschlags verbessert wird. Da es sich bei einem Verstellbeschlag um ein Massenbauteil handelt, werden Kostenvorteile dadurch erzielt, dass nur mehr ein einziges Werkzeug zur Herstellung benötigt wird.The advantage of using the cold extrusion for producing the inner wheel and / or the outer wheel for a Verstellbeschlag lies in the possibility for strength-optimized structures that may provide weight advantages. Cost savings can also be achieved through material savings. In addition, tighter tolerances in the toothing and the coaxiality can be realized by the use of cold extrusion, whereby the homogeneity of the operation of the adjustment fitting is improved. Since an adjustment fitting is a mass component, cost advantages are achieved by requiring only a single tool for production.

Bei dem vorgenannten Innenrad mit verlängerter Innenwand erlaubt das Kaltfließpressen insbesondere eine erleichterte Herstellung einer Geometrie, wobei die Außenverzahnung von einem umlaufenden Ring gedeckt ist. Hierdurch ist die Verzahnung umlaufend angebunden, so dass die Festigkeit bei gleichem Bauraum gesteigert wird. Eine entsprechende Geometrie lässt sich mit anderen Kaltumformprozessen nicht erzielen. Allenfalls kommt eine spanende Bearbeitung in Frage.In the aforementioned inner wheel with extended inner wall, the cold extrusion allows in particular a facilitated production of a geometry, wherein the outer toothing is covered by a circumferential ring. As a result, the toothing is connected peripherally, so that the strength is increased with the same space. A corresponding geometry can not be achieved with other cold forming processes. At best, a machining process comes into question.

Für ein Außenrad, welches vorliegend als Hohlrad ausgebildet ist, ermöglicht die Verwendung des Kaltfließpressens die Verstärkung des Materials an besonders belasteten Bereichen. Dies kann beispielsweise im Bereich des inneren Kragenzuges oder im Bereich der Verzahnung vorgesehen werden.For an external gear, which is presently designed as a ring gear, allows the use of cold extrusion, the reinforcement of the material at particularly loaded areas. This can be provided for example in the region of the inner collar pull or in the area of the toothing.

Ein Ausführungsbeispiel der Erfindung ist anhand einer Zeichnung näher erläutert. Dabei zeigen:

Fig. 1
in einer Explosionsdarstellung einen Verstellbeschlag für einen Fahrzeugsitz, wobei das Außenrad als ein Hohlrad ausgebildet ist, in dem das Innenrad mittels eines Halteelements gegengelagert ist,
Fig. 2
den Verstellbeschlag gemäß Fig. 1 in einem Querschnitt,
Fig. 3
ein mittels Kaltfließpressen hergestelltes Außenrad in einem Querschnitt und
Fig. 4
ein mittels Kaltfließpressen hergestelltes Innenrad in einem Querschnitt.
An embodiment of the invention is explained in more detail with reference to a drawing. Showing:
Fig. 1
in an exploded view an adjustment fitting for a vehicle seat, wherein the outer wheel is formed as a ring gear, in which the inner wheel is counter-supported by means of a holding element,
Fig. 2
the adjustment fitting according to Fig. 1 in a cross section,
Fig. 3
an outer wheel made by cold extrusion in a cross section and
Fig. 4
a manufactured by cold extrusion internal wheel in a cross section.

In Fig. 1 ist in einer Explosionsdarstellung ein Verstellbeschlag 1 für einen Fahrzeugsitz dargestellt. Der Verstellbeschlag 1 umfasst hierbei ein erstes Beschlagteil 2 und ein zweites Beschlagteil 3, die relativ zueinander um eine Drehachse A drehverstellbar sind. Das erste Beschlagteil 2 besteht aus einem Außenrad 4, welchem zur späteren Montage an einer Sitzlehne ein entsprechender Lehnenadapter 6, insbesondere mittels einer Schweißung, angebunden ist. Das zweite Beschlagteil 3 umfasst ein Innenrad 7 sowie einen mit diesem verbundenen Sitzadapter 8 zur Anbindung an ein Sitzunterteil.In Fig. 1 an adjustment fitting 1 for a vehicle seat is shown in an exploded view. The adjustment fitting 1 in this case comprises a first fitting part 2 and a second fitting part 3, which are rotatable relative to each other about an axis of rotation A. The first fitting part 2 consists of an outer wheel 4, which is connected to the later assembly of a seat back, a corresponding backrest adapter 6, in particular by means of a weld. The second fitting part 3 comprises an inner wheel 7 and a seat adapter 8 connected thereto for connection to a seat base.

Das Außenrad 4 ist als ein Hohlrad 5 mit einem Boden 9 und einer umlaufenden zylindrischen Außenwand 10 ausgebildet. An der Innenseite der Außenwand 10 ist eine axial zurückgesetzte Innenverzahnung 12 vorgesehen. Die Außenwand 10 ist in axialer Richtung über die Innenverzahnung 12 hinaus verlängert. Im Inneren des Hohlrads 5 ist weiter ein Kragenzug 14 angebracht, der eine zentrale Bohrung umläuft. In das Hohlrad 5 wird das Innenrad 7 eingefügt, welches eine umlaufende Außenverzahnung 16 und eine in axialer Richtung über die Außenverzahnung 16 hinaus verlängerte, zylindrische Innenwand 18 umfasst.The outer wheel 4 is formed as a ring gear 5 with a bottom 9 and a circumferential cylindrical outer wall 10. On the inside of the outer wall 10, an axially recessed internal toothing 12 is provided. The outer wall 10 is extended beyond the inner teeth 12 in the axial direction. In the interior of the ring gear 5, a collar 14 is further attached, which rotates a central bore. In the ring gear 5, the inner wheel 7 is inserted, which comprises a circumferential outer toothing 16 and a cylindrical inner wall 18 extended in the axial direction beyond the outer toothing 16 addition.

Zur Montage des Verstellbeschlags 1 wird das Innenrad 7 in den Innenraum 20 des Hohlrades 4 eingesetzt. Da der Außendurchmesser des Innenrads 7 gegenüber dem Innendurchmesser 12 des Hohlrades 4 einen verringerten Durchmesser hat, wälzt sich letzteres taumelnd unter Abrollung der Außenverzahnung 16 an der Innenverzahnung 12 in dem Hohlrad 5 ab. Die Anzahl der Zähne der Außenverzahnung 16 ist gegenüber der Anzahl der Zähne der Innenverzahnung 12 verringert, so dass sich das Innenrad 7 bei einem vollständigen Umlauf gegenüber dem Hohlrad 5 um die Zahndifferenz relativ verdreht.For mounting the adjustment fitting 1, the inner wheel 7 is inserted into the interior 20 of the ring gear 4. Since the outer diameter of the inner wheel 7 with respect to the inner diameter 12 of the ring gear 4 has a reduced diameter has, the latter rolls tumbling under unwinding of the external teeth 16 on the internal teeth 12 in the ring gear 5 from. The number of teeth of the external toothing 16 is reduced relative to the number of teeth of the internal toothing 12, so that the internal gear 7 relatively rotates in a complete revolution relative to the ring gear 5 by the tooth difference.

Das Innenrad 7 wird axial bis zum Boden 9 in das Hohlrad 5 eingeführt. Anschließend wird ein Halteelement 23, welches als ein Haltering 24 ausgebildet ist, dem Innenrad 7 in den Innenraum 20 des Hohlrades 5 nachgeführt, wobei es die Innenwand 18 des Innenrades 7 umschließt. Der Haltering 24 weist einen gegenüber dem Innendurchmesser der Außenwand 10 geringfügig verringerten Außendurchmesser auf. Sein Innendurchmesser erlaubt die taumelnde Bewegung der umschlossenen Innenwand 18 des eingesetzten Innenrades 7. Die Außenverzahnung 16 des Innenrads 7 befindet sich auf einem umlaufenden Flansch, über den das Innenrad 7 an dem Haltering 24 gegengelagert ist.The inner wheel 7 is inserted axially to the bottom 9 in the ring gear 5. Subsequently, a holding element 23, which is formed as a retaining ring 24, the inner wheel 7 tracked into the interior 20 of the ring gear 5, wherein it surrounds the inner wall 18 of the inner wheel 7. The retaining ring 24 has a relation to the inner diameter of the outer wall 10 slightly reduced outer diameter. Its inner diameter allows the tumbling movement of the enclosed inner wall 18 of the inserted inner wheel 7. The outer toothing 16 of the inner wheel 7 is located on a circumferential flange, via which the inner wheel 7 is mounted counter to the retaining ring 24.

Der Haltering 24 wird in axialer Richtung so weit gegen den Boden 9 des Hohlrads 5 bewegt, bis ein definiertes Axialspiel des Innenrads 7 eingestellt ist. Dies kann sowohl kraft- als auch weggesteuert geschehen. Bei einer kraftgesteuerten Einfügung werden Fertigungstoleranzen in der axialen Breite der Außenverzahnung 16 ausgeglichen. In der gewünschten Endposition wird der Haltering 24 umlaufend mit der Innenseite der Außenwand 10 verschweißt.The retaining ring 24 is moved in the axial direction so far against the bottom 9 of the ring gear 5 until a defined axial clearance of the internal gear 7 is set. This can be done both force and path controlled. In a force-controlled insertion manufacturing tolerances in the axial width of the external teeth 16 are compensated. In the desired end position of the retaining ring 24 is circumferentially welded to the inside of the outer wall 10.

Durch das in das Hohlrad 5 eingesetzte Innenrad 7 wird zwischen dem Kragenzug 14 und der Innenwand 18 ein exzentrischer Aufnahmeraum 25 zur Aufnahme eines antreibenden Exzenters gebildet.By inserted into the ring gear 5 inner wheel 7, an eccentric receiving space 25 is formed between the collar 14 and the inner wall 18 for receiving a driving eccentric.

Der Sitzadapter 8 umfasst einen äußeren Ring 27, der über eine zentrale Öffnung 28 die Innenwand 18 des Innenrads 7 übergreift. Im montierten Zustand ist die Innenwand 18 mit dem äußeren Ring 27 des Sitzadapters 8 fest verschweißt.The seat adapter 8 comprises an outer ring 27, which engages over the inner wall 18 of the inner wheel 7 via a central opening 28. In the assembled state, the inner wall 18 is firmly welded to the outer ring 27 of the seat adapter 8.

In den exzentrischen Aufnahmeraum 25 sind zur Ausbildung einer variablen Gesamtexzentrizität ein erster Teilexzenter 30 und ein zweiter Teilexzenter 32 eingesetzt. Diese gemeinsam den Exzenter bildenden Teilexzenter 30,32 werden mittels einer aufgelegten Mitnehmerscheibe 34 gegeneinander verdreht, wodurch sich ihre Gesamtexzentrizität verändert. Hierzu weist die Mitnehmerscheibe 34 seitliche Aussparungen 35,36 auf, in die Mitnehmernasen 37,38 des ersten bzw. des zweiten Teilexzenters 30,32 eingreifen. Die Teilexzenter 30,32 sind mittels eines Federelements 40 zur Ausbildung einer maximalen Gesamtexzentrizität vorgespannt, wobei in dieser Position das Innenrad 7 spielfrei gegen das Außenrad 4 gedrückt ist.In the eccentric receiving space 25, a first Teilzzenter 30 and a second Teilzzenter 32 are used to form a variable total eccentricity. These together the eccentric forming part eccentric 30,32 are rotated by means of an applied drive plate 34 against each other, thereby changing their overall eccentricity. For this purpose, the drive plate 34 has lateral recesses 35, 36 into which drive lugs 37, 38 of the first or the second parts eccentric 30, 32 engage. The parts eccentric 30,32 are biased by means of a spring element 40 to form a maximum total eccentricity, in which position the inner wheel 7 is pressed against the outer wheel 4 without play.

Zum Antrieb des Verstellbeschlags 1 ist ein durchgehender Lagerzapfen 42 vorgesehen, der einen exzentrischen, in die Innenwand 18 seitlich eingreifenden Deckel 44 umfasst. In den Deckel 44 ist zum Antrieb eine Vierkantöffnung 45 eingefügt. Der Lagerzapfen 42 ist drehfest mit der Mitnehmerscheibe 34 verbunden. Zur Halterung des Lagerzapfens 42 ist gegenüberliegend ein Haltering 46 vorgesehen.To drive the adjustment fitting 1, a continuous bearing pin 42 is provided, which comprises an eccentric, in the inner wall 18 laterally engaging lid 44. In the cover 44 a square opening 45 is inserted to drive. The bearing pin 42 is rotatably connected to the drive plate 34. For holding the bearing pin 42, a retaining ring 46 is provided opposite.

Um die Reibung der Teilexzentrizitäten 30,32 auf dem Kragenzug 14 und auf der Innenwand 18 zu verringern, sind eine innere Gleitlagerbuchse 48 und eine äußere Gleitlagerbuchse 49 vorgesehen. Die innere Gleitlagerbuchse 48 ist dabei dem Kragenzug 14 aufgesetzt. Die äußere Gleitlagerbuchse 49 ist in die Innenwand 18 eingesetzt.To reduce the friction of the part eccentricities 30, 32 on the collar 14 and on the inner wall 18, an inner sleeve 48 and an outer sleeve 49 are provided. The inner plain bearing bush 48 is placed on the collar 14. The outer plain bearing bush 49 is inserted into the inner wall 18.

Bei einer Betätigung des Lagerzapfens 42 werden über die Mitnehmerscheibe 34 die beiden Teilexzentrizitäten 30,32 unter Verringerung der ausgebildeten Gesamtexzentrizität gegen die Federspannung bewegt. Hieraus resultiert ein Spiel des Innenrads 7 gegenüber dem Hohlrad 5, so dass der Exzenter unter taumelndem Abrollen des Innenrads 7 in dem Hohlrad 5 rotiert werden kann. Die Beschlagteile 2,3 werden relativ zueinander die Drehachse A verstellt.Upon actuation of the bearing pin 42, the two Teilxzentrizitäten 30,32 be moved to reduce the trained total eccentricity against the spring tension on the drive plate 34. This results in a game of the inner wheel 7 relative to the ring gear 5, so that the eccentric can be rotated in the ring gear 5 under tumbling rolling of the inner wheel 7. The fitting parts 2,3 are relative to each other, the axis of rotation A adjusted.

In Fig. 2 ist der Verstellbeschlag 1 gemäß Fig. 1 in einem Querschnitt dargestellt. Man erkennt den Sitzadapter 8, der dem Innenrad 7 angebunden ist, und den Lehnenadapter 6, welcher mit dem Hohlrad 5 fest verbunden ist.In Fig. 2 is the adjustment fitting 1 according to Fig. 1 shown in a cross section. It recognizes the seat adapter 8, which is connected to the inner wheel 7, and the backrest adapter 6, which is fixedly connected to the ring gear 5.

Das Innenrad 7 ist in die Außenwand 10 des Hohlrades 4 eingesetzt und zwischen dessen Boden 9 und dem Haltering 24 gelagert. Dabei stützt sich die Außenverzahnung 16 in axialer Richtung gegen den Haltering 24 ab. Über die axiale Positionierung des Halterings 24 ist das Axialspiel des Innenrads 7 gegenüber dem Hohlrad 5 eingestellt. Der Haltering 24 ist in der eingestellten Position mit der Außenwand 10 des Hohlrads 5 verschweißt. Der Sitzadapter 8 ist der in axialer Richtung über die Außenverzahnung 16 hinaus verlängerten Außenwand 18 des Innenrades 7 angeschweißt.The inner wheel 7 is inserted into the outer wall 10 of the ring gear 4 and mounted between the bottom 9 and the retaining ring 24. In this case, the external toothing 16 is supported in the axial direction against the retaining ring 24. About the axial positioning of the retaining ring 24, the axial clearance of the inner wheel 7 is set relative to the ring gear 5. The retaining ring 24 is welded in the set position with the outer wall 10 of the ring gear 5. The seat adapter 8 is welded to the outer wall 18 of the inner wheel 7 which is extended in the axial direction beyond the outer teeth 16.

In den zwischen dem Kragenzug 14 und der Innenwand 18 gebildeten exzentrischen Aufnahmeraum 25 sind als Exzenter die beiden Teilexzentrizitäten 30 und 32 eingesetzt. Über das Federelement 40 sind diese zur Ausbildung einer maximalen Gesamtexzentrizität vorgespannt. Im gezeigten Querschnitt wird die Mitnehmerscheibe 34 ersichtlich, die mit der Mitnehmernase 37 der ersten Teilexzentrizität 30 zusammenwirkt.In the formed between the collar 14 and the inner wall 18 eccentric receiving space 25, the two Teilxzentrizitäten 30 and 32 are used as an eccentric. About the spring element 40, these are biased to form a maximum total eccentricity. In the cross section shown, the drive plate 34 can be seen, which cooperates with the driving lug 37 of the first part eccentricity 30.

Das Hohlrad 5 ist mittels des Kragenzugs 14 auf dem durchgehenden Lagerzapfen 42 gelagert. Es wird ersichtlich, dass der Lagerzapfen 42 auf der Seite des Hohlrades 4 mittels des Halterings 46 gesichert ist. Gegenüberliegend geht der Lagerzapfen 42 in den Deckel 44 über, der mit seitlich herabgezogenen Wänden in die Innenwand 18 des Innenrads 7 eintaucht. Der Deckel ist dabei entsprechend der ausgebildeten Gesamtexzentrizität der Teilexzenter 30,32 ebenfalls exzentrisch ausgebildet. Im Inneren des Lagerzapfens 42 wird der Vierkant 45 zur Anbindung an einen Antrieb ersichtlich.The ring gear 5 is supported by the collar 14 on the continuous bearing pin 42. It can be seen that the bearing pin 42 is secured on the side of the ring gear 4 by means of the retaining ring 46. Opposite the bearing pin 42 passes into the cover 44, which dips with laterally drawn down walls in the inner wall 18 of the inner wheel 7. The cover is also formed eccentrically according to the trained total eccentricity of the parts eccentric 30,32. Inside the bearing pin 42 of the square 45 is visible for connection to a drive.

Bei einer Betätigung des Lagerzapfens 42 verringert sich über die die Teilexzenter 30,32 zueinander verstellende Mitnehmerscheibe 34 die Gesamtexzentrizität, so dass der gebildete Exzenter das Innenrad 7 zu einem Umlauf im Hohlrad 5 antreibt. Da das Innenrad 7 über den Sitzadapter 8 sitzfest angebunden ist, resultiert eine mit dem Lagerzapfen 42 gleichsinnige Verdrehung des Lehnenadapters 6 bzw. der damit verbundenen Lehne des Fahrzeugsitzes.Upon actuation of the bearing pin 42 is reduced over the parts eccentric 30,32 mutually adjusting drive plate 34, the total eccentricity, so that the eccentric cam drives the inner wheel 7 to a circulation in the ring gear 5. Since the inner wheel 7 is connected securely seated on the seat adapter 8, results in a same direction with the bearing pin 42 rotation of the backrest adapter 6 and the associated backrest of the vehicle seat.

Fig. 3 zeigt in einem Querschnitt ein mittels Kaltfließpressen hergestelltes Außenrad 4. Es wird der eine zentrale Bohrung 50 umlaufende Kragenzug 14 sowie die hochgezogene Außenwand 10 ersichtlich, an deren inneren Umfang die Innenverzahnung 12 angeformt ist. Mittels Kaltfließpressen ist die Materialstärke des Außenrads 4 im Bereich 52 zum Kragenzug 14 und im Zahnungsbereich 53 erhöht. Das mittels Kaltfließpressen hergestellte Außenrad 4 zeigt insofern eine belastungsgerechte Materialverteilung. Fig. 3 shows in a cross section an outer wheel 4 produced by cold extrusion. It is the central bore 50 circumferential collar 14 and the raised outer wall 10 can be seen, on the inner circumference of the internal teeth 12 is formed. By means of cold extrusion, the material thickness of the outer wheel 4 is increased in the region 52 to the collar 14 and in the toothing region 53. The outer wheel 4 produced by means of cold extrusion shows so far a load-oriented material distribution.

In Fig. 4 ist ein kaltfließgepresstes Innenrad 7 in einem Querschnitt dargestellt. Es wird die hochgezogene Innenwand 18 erkenntlich, die an ihrer Außenseite eine angeformte Außenverzahnung 16 trägt. Durch einen aufliegenden Ring 54 ist die Außenverzahnung 16 umlaufend an eine Stützgeometrie angebunden. Die Festigkeit des Innenrads 7 ist somit bei gleichem Bauraum gesteigert. Durch das Vorsehen des Rings 54 wird zudem ein guter Materialfluss zur Herausformung der Außenverzahnung 16 während des Kaltfließpressens erzielt. Bezugszeichenliste 1 Verstellbeschlag 2 erstes Beschlagteil 48 innere Gleitlagerbuchse 3 zweites Beschlagteil 49 äußere Gleitlagerbuchse 4 Außenrad 50 Bohrung 5 Hohlrad 52 Bereich 6 Lehnenadapter 53 Verzahnungsbereich 7 Innenrad 54 Ring 8 Sitzadapter 9 Boden A Drehachse 10 Außenwand 12 Innenverzahnung 14 Kragenzug 16 Außenverzahnung 18 Innenwand 20 Innenraum 23 Halteelement 24 Haltering 25 exzentr. Aufnahmeraum 27 äußerer Ring 28 zentrale Öffnung 30 erster Teilexzenter 32 zweiter Teilexzenter 34 Mitnehmerscheibe 35,36 seitliche Aussparung 37,38 Mitnehmernase 40 Federelement 42 Lagerzapfen 44 Deckel 45 Vierkantöffnung 46 Haltering In Fig. 4 is a Kaltfließgepresstes inner wheel 7 shown in a cross section. It is recognizable the raised inner wall 18 which carries on its outer side an integrally formed external toothing 16. By an overlying ring 54, the external teeth 16 is peripherally connected to a support geometry. The strength of the inner wheel 7 is thus increased with the same space. By providing the ring 54 also a good flow of material for the formation of the external teeth 16 is achieved during the cold extrusion. LIST OF REFERENCE NUMBERS 1 Adjuster 2 first fitting part 48 inner plain bearing bush 3 second fitting part 49 outer plain bearing bush 4 outer wheel 50 drilling 5 ring gear 52 Area 6 backrest adapter 53 toothed area 7 inner wheel 54 ring 8th seat adapter 9 ground A axis of rotation 10 outer wall 12 internal gearing 14 collar 16 external teeth 18 inner wall 20 inner space 23 retaining element 24 retaining ring 25 Eccentric. accommodation space 27 outer ring 28 central opening 30 first part eccentric 32 second part eccentric 34 driver disc 35.36 lateral recess 37.38 driving lug 40 spring element 42 pivot 44 cover 45 Square hole 46 retaining ring

Claims (14)

  1. Adjustment fitting (1), in particular for a vehicle seat, having a first fitting part (2), having a second fitting part (3) which is rotationally adjustable around a rotational axis (A) relative to the first fitting part (2), wherein an outer wheel (4) having an inner toothing (12) is allocated to the first fitting part (2) into which an inner wheel (7) allocated to the second fitting part (3) and having an outer toothing (16) in the form of a wobble mechanism is inserted eccentrically to the axis of rotation (A), and wherein the inner wheel (7) forms an eccentric receiving space (25) with respect to the axis of rotation (A), having a cam (30, 32) which is inserted rotatably into the eccentric receiving space (25), and having a drive shaft to drive the cam (30, 32), wherein a backrest adapter (6) is attached to the outer wheel (4) and a seat adapter (8) is attached to the inner wheel (7) such that the inner wheel (7) remains fixed in terms of the seat part, whilst the outer wheel (4) including the drive shaft wobbles during an adjustment, and wherein the outer wheel (4) is formed as a ring gear (5) having a base (9) and having an outer wall (10) which extends outwards in the axial direction beyond the inner toothing (12),
    characterised in that
    a holding element (23) which is able to slide axially against the inner wheel (7) in the outer wall (10) is provided, which is fastened to the outer wall (10) and supports the inner wheel (7) against the base (9) of the ring gear (4).
  2. Adjustment fitting (1) according to claim 1,
    characterised in that
    the inner wheel (7) is mounted on the holding element (23) via the outer toothing (16).
  3. Adjustment fitting (1) according to claim 1 or 2,
    characterised in that
    the inner wheel (7) comprises an inner wall (18) which extends outwards in the axial direction beyond the outer toothing (16) and which penetrates the holding element (23) in the axial direction, and that the inner wheel (7) is allocated to the second fitting part (3) via the inner wall (18).
  4. Adjustment fitting (1) according to one of the preceding claims,
    characterised in that
    the outer wall (10) of the ring gear (5) and the inner wall (18) of the inner wheel (7) are each formed as a cylinder wall.
  5. Adjustment fitting (1) according to one of the preceding claims,
    characterised in that
    the holding element (23) is formed as a retaining ring (24).
  6. Adjustment fitting (1) according to one of the preceding claims,
    characterised in that
    a collar is formed on the base (9) of the ring wheel (5) such that the eccentric receiving space (25) is formed between the collar and the inner wheel (7).
  7. Adjustment fitting (1) according to one of the preceding claims,
    characterised in that
    the cam is mounted in the eccentric receiving space (25) between an inner (48) and an outer plain bearing bushing (49).
  8. Adjustment fitting (1) according to one of the preceding claims
    characterised in that
    two partial cams (30, 32) which form a variable total eccentricity and are rotatable with respect to each other are inserted into the receiving space (25), said partial cams (30, 32) being biased with respect to each other for the formation of a maximum total eccentricity, and that a driver which is connected non-rotatably to the drive shaft is provided which acts on the partial cams (30, 32) against the biasing direction in the case of a drive.
  9. Adjustment fitting (1) according to one of the preceding claims,
    characterised in that
    the holding element (23) is welded to the outer wall (10) of the ring gear (5).
  10. Adjustment fitting (1) according to one of the preceding claims,
    characterised in that
    the drive shaft is formed as a continuous bearing journal (42).
  11. Adjustment fitting (1) according to one of the preceding claims,
    characterised in that
    the backrest adapter (6) is welded to the outer wheel (4) and the seat adapter (8) is welded to the inner wheel (7).
  12. Adjustment fitting (1) according to one of the preceding claims,
    characterised in that
    the outer toothing (16) of the inner wall (18) of the inner wheel (7) is covered by a circulating ring (54).
  13. Adjustment fitting (1) according to one of the preceding claims,
    characterised in that
    the complete inner wheel (7) with inner wall (18) and total outer toothing (16) is produced as a cold extrusion part.
  14. Adjustment fitting (1) according to one of the preceding claims,
    characterised in that
    the outer wheel (4) is produced as a cold extrusion part.
EP09761441.6A 2008-06-13 2009-06-06 Adjustment fitting Active EP2300267B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09761441T PL2300267T3 (en) 2008-06-13 2009-06-06 Adjustment fitting

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE200810028103 DE102008028103A1 (en) 2008-06-13 2008-06-13 Adjustment bracket for vehicle seat, has external wall overlapping external tooth, and inner wheel comprising inner wall that extends in axial direction over external tooth, where inner wall penetrates flange in axial direction
DE200810028102 DE102008028102A1 (en) 2008-06-13 2008-06-13 Adjustable fitting for adjusting backrest provided opposite to lower part of vehicle seat, has outer wheel formed as hollow wheel with base, and retaining element axially movable against inner wheel and supporting inner wheel against base
PCT/EP2009/004088 WO2009149878A2 (en) 2008-06-13 2009-06-06 Adjustment fitting

Publications (2)

Publication Number Publication Date
EP2300267A2 EP2300267A2 (en) 2011-03-30
EP2300267B1 true EP2300267B1 (en) 2015-09-09

Family

ID=41328692

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EP09761439.0A Active EP2300266B1 (en) 2008-06-13 2009-06-06 Adjustment fitting
EP09761441.6A Active EP2300267B1 (en) 2008-06-13 2009-06-06 Adjustment fitting

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Country Status (8)

Country Link
US (2) US8152241B2 (en)
EP (2) EP2300266B1 (en)
JP (1) JP5467104B2 (en)
KR (2) KR101260338B1 (en)
CN (2) CN102046413B (en)
PL (2) PL2300267T3 (en)
RU (1) RU2462375C1 (en)
WO (2) WO2009149878A2 (en)

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WO2009149878A2 (en) 2009-12-17
US20110140494A1 (en) 2011-06-16
EP2300266B1 (en) 2016-10-12
KR20110028509A (en) 2011-03-18
KR101284116B1 (en) 2013-07-10
CN102046414A (en) 2011-05-04
CN102046414B (en) 2013-06-05
EP2300267A2 (en) 2011-03-30
JP5467104B2 (en) 2014-04-09
JP2011522645A (en) 2011-08-04
KR101260338B1 (en) 2013-05-06
WO2009149876A2 (en) 2009-12-17
RU2462375C1 (en) 2012-09-27
PL2300267T3 (en) 2016-02-29
WO2009149876A3 (en) 2010-05-06
WO2009149878A3 (en) 2010-05-20
KR20110022052A (en) 2011-03-04
CN102046413A (en) 2011-05-04
US9139112B2 (en) 2015-09-22
CN102046413B (en) 2013-06-05
RU2011100847A (en) 2012-07-20
US20110140493A1 (en) 2011-06-16
US8152241B2 (en) 2012-04-10
EP2300266A2 (en) 2011-03-30
PL2300266T3 (en) 2017-06-30
WO2009149876A8 (en) 2010-12-02

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